Highlights: 
South Iceland is the most popular part of the country amongst travellers and contains some of Iceland’s most beautiful natural attractions.
Amongst these are the sites of the world famous Golden Circle, and the features of the South Coast, such as the beautiful Jökulsárlón glacier lagoon.
The south of Iceland can be roughly split into two areas, the lowlands in the west, and the east.
The South Icelandic lowlands
The South Icelandic lowlands stretch nearly 100 kilometres (over sixty miles) from Hellisheiði in the west to Eyjafjallajökull in the east. This region is flat and fertile farming land, and home to many Icelandic horses and sheep.
The whole area is geologically very young, formed during the last Ice Age by the lava flows from numerous volcanoes in the area. The lowlands are surrounded by volcanically active mountains, notably the aforementioned Eyjafjallajökull and Hekla.
The most notable features of the South Icelandic lowlands are the three on the Golden Circle, the country’s most popular sightseeing route.
These consist of the Geysir Geothermal Area, where geysers erupt and hot springs bubble, Gullfoss, a powerful two-stepped waterfall, and Þingvellir National Park, an oasis of forests and lava located between the tectonic plates.
The fissures and lava landscapes of this latter feature reveal the extent to which earthquakes and eruptions have shaped the region. The area is still very active; take, for example, the 1975 eruption in the Westman Islands that nearly destroyed the town and formed a new island.
It should be noted that Þingvellir is not just a site of natural, geological wonder. It was also the original site of the parliament Icelanders formed in 930 AD. This was a convenient place, considering the fertile lands of south Iceland meant that many settlers populated it.
Unlike most early Icelandic settlements, few of the communities formed in the south were based off fishing. The only town with a significant harbour in the south is Þorlákshöfn, where the ferry to the Westman Islands leaves.
Other towns in the lowlands are Selfoss, Hveragerði, Hella and Hvolsvöllur, all conveniently located by the Ring Road.
In terms of culture in the lowlands, it was once home to the ancient bishop seat of Skálholt. Also, Iceland's most famous saga, Njal's Saga, takes place in the region.
For sports, horse riding is popular, as is fishing for salmon and trout, hiking, snorkelling, sightseeing and river rafting.
Eastern South Iceland.
The areas south and east of Mýrdalsjökull, the glacier that covers the volcano Katla, are considered the eastern part of south Iceland. Glaciers, volcanoes and the Highlands dominate the view.
This landscape has also been shaped by volcanic eruptions, although these were much more recent, and thus the area looks dramatically different. Vast expanses of black sand stretch from the Highlands to the sea, part of several glacial outwash plains that flood during a volcanic eruption.
Some agriculture is found here, with farms nestled in the mountains, but because of the glacial floods, they are few and far between.
A few large glacial rivers flow through this area, creating incredible features such as Skógafoss and Seljalandsfoss. These are hardly the only sites in this part of the south worth seeing, however.
Sólheimajokull is a beautiful outlet glacier, a tongue of the greater Mýrdalsjökull, that you can hike on so long as you are with a guide. Skógar has a very interesting museum that discusses national traditions during Iceland’s development. One of Iceland’s most famous hiking routes, Fímmvörðuháls, cuts through the area.
Southwest of the village of Vík is one of Iceland’s most spectacular beaches, Reynisfjara. Near the promontory of Dýrholaey, and boasting incredible views of the Reynisdrangar sea stacks, it is a marvellous stretch of black sand.
Even further east is the Skaftafell preservation area, an area so beautiful it was once a national park in its own right. Today it is part of the greater Vatnajökull National Park, which covers parts of the south, east, north and much of the Highlands.
Just a little further from here is the incredible, world famous Jökulsárlón glacier lagoon, a deep lake that fills with icebergs. At the adjacent Diamond Beach, they wash upon the shore.
West Iceland is home to the country’s capital city, Reykjavík, and an array of impressive natural sites. These include Europe's most powerful hot spring, Iceland's most significant lava tube, fascinating glaciers, beautiful waterfalls important historical sites and more. It has three main districts outside of the capital area: Borgarfjörður, the Snӕfellsnes Peninsula, and Breiðafjörður.
Though also in the west, the Westfjords and Reykjanes Peninsula are considered to be in separate regions.
The Capital Area
Iceland’s capital city is Reykjavík, a settlement of 120,000 people (over 200,000 in the Greater Reykjavík Area) that was founded in 870 AD by Ingólfur Arnarson; this makes it the country’s oldest inhabited area.
It is a hot spot of culture, with festivals such as Sónar, Airwaves and Secret Solstice, events such as Pride and Culture Nights, and countless museums and galleries. The city is also renowned for its vibrant live music, cabaret and drag scenes, its street art, many sculptures, and its delicious cuisine.
Its architecture is particularly of note, with impressive buildings such as Hallgrímskirkja Church and the Harpa Concert Hall.
Reykjavík is where most visitors base themselves and the point from which most tour leaves. There is a comprehensive guide to Reykjavík on this site.
Borgarfjörður
Borgarfjörður is the fjord north of Reykjavík, within which is a wealth of beautiful historical and natural sites. Reykholt, for example, is a tiny village where medieval historian and poet Snorri Sturluson, author of Snorra-Edda and Heimskringla, once lived. Borgarnes, the main village of Borgarfjörður, is one of Iceland’s earliest towns, and home to the fascinating Settlement Centre.
In terms of nature, Borgarfjörður is home to the second highest waterfall in the country, Glymur. Other beautiful waterfalls include the magical and peaceful Hraunfossar and the raging rapids of Barnafoss which lie only a stone's throw apart. The area is also home to the longest lava cave in the country, Viðgelmir, the highest flowing hot spring in Europe, Deildartunghver, and just inland is Iceland’s second biggest glacier, Langjökull.
Snӕfellsnes
The Snӕfellsnes peninsula is a marvellous stretch of land in west Iceland. It is home to a unique mountain ridge with the majestic Snӕfellsjokull glacier and National Park at its westernmost point.
The region is often called Iceland in miniature due to its diverse sites, which include beautiful mountains such as Kirkjufell, geological wonders such as the Gerðuberg cliffs, and coastal formations such as Lóndrangar rock pinnacles.
Breiðafjörður
Breiðafjörður is the fjord that separates the Westfjords from the Snӕfellsnes Peninsula. It is a natural reserve with countless small islands and home to thousands of birds, including puffins.
The inner part of Breiðafjörður is the old farm site Eiriksstadir, the home of Eric the Red, the first European to land in Greenland, in the year 984 AD. His son was Leif Ericsson, the first European to land in America, in the year 1000.
Hengill is an enormous mountain in south-west Iceland, covering an area of about 100 square kilometres. It is a vital source of energy for south Iceland
Energy at Hengill
Hengill is an active volcano, although there has not been an eruption here for about 2,000 years. In spite of that, there is still lava close to the surface, evidenced by the steaming fumaroles and many hot springs dotted across it.
Iceland’s electricity and heated water comes from entirely renewable sources, taken from places such here. There are two power stations harnessing the energy potential at Hengill, called Nesjavellir and Hellisheiði.
Certain Golden Circle tours include stops at these.
Popular sites at Hengill
The energy beneath Hengill does not only help Iceland with its electrical and heating needs; it also helps with tourism. The geothermal activity of the volcano has created some of the country’s most popular sites.
Most significant of these are Hveragerði town and the adjacent Reykjadalur valley. Hveragerði is often named the ‘hot spring town’ or the ‘earthquake town’ because of the amount of volcanic activity Hengill creates here.
Boiling water runs mere feet beneath the surface of the earth, meaning there are steaming fumaroles all around. Chefs cook simply by burying their food into the earth, leading to an interesting restaurant culture. There is also an exhibition on the town’s earthquake history.
On that note, activity at Hengill has historically caused no end of trouble for the residents of Hveragerði. Though the houses are built to be earthquake proof now, there is little that can be done about the boiling water when it rises. It regularly causes surprise hot springs to rise inside people’s homes.
Reykjadalur can be hiked through from Hveragerði, and is one of Iceland’s easiest, most accessible, and rewarding trails. After walking for an hour or so through a beautiful range of mountains, visitors will come to a river fed by both boiling and rain water.
This mix means that guests can find the perfect points to bathe, based on how warm they want it. The surrounding area is dotted with boiling mud pits and steaming vents.
Hengill is located south of Þingvellir National Park, one of the sites of the Golden Circle. One of the best ways to see the scale of it is to approach the park from Reykjavík, and stop on top of the Almannagjá Gorge.
This gorge runs from north to south, and looking south, there is no missing the slopes of the volcano across the lake Þingvallavatn.
Reykjadalur, the Valley of Steam, is a beautiful geothermal region close to the southern town Hveragerði. It is a popular place for hiking and hot spring bathing.
Hot Spring Bathing at Reykjadalur
Reykjadalur is best know for the heated river that runs through it. Water boiling out of dozens of hot springs in the hills trickle into one body, which is also fed with glacier and rainwater.
The result is a wonderfully warm, gentle stream. Depending on how hot you want the water to be, you can go up- or down-river for the perfect bathing temperature.
Hiking in Reykjadalur
The hiking route to Reykjadalur can be reached by driving through Hveragerði (which is about an hour’s drive from Reykjavík) along the Ring Road travelling South. A gravel road leads to a carpark, where the trail begins.
From there, you will cross a river, then start a gentle ascent. The path goes up, down and along the faces of hills; and though it sometimes gets quite steep, is manageable for anyone comfortable on their feet in reasonable health, so long as the weather is fair.
For forty minutes or so, you will hike passed many steaming vents and bubbling springs, while enjoying the beautiful views around Reykjadalur. You will then reach the warm river and can walk along it for twenty minutes or so to the perfect spot for bathing.
In summer, you will also see a wealth of flora blooming on the hills and in the valley, particularly lupins. Around the hot springs, the chemicals rising from the earth provide even more colour, dying the soil pinks, blues, greens, reds and yellows.
While it is viable to visit the hot springs alone, many tours also run to them so the area can be enjoyed with a group and a guide. These tours can be done on foot or horseback, and alone or alongside other excursions, such a sightseeing around the Golden Circle.
As with all hiking trails in Iceland, it is important to stick to the paths throughout. This is for your safety—considering the steep slopes, change of rockfalls, and boiling water—and for the protection of nature. Iceland’s flora is very delicate, and with the boom in tourism, strict rules are in place to protect it.
Services near Reykjadalur
Hveragerði has all modern services and amenities visitors may need. There is a supermarket, gas station, information centre, and several cafes and restaurants.
Interestingly, some of these restaurants utilise the geothermal forces in the preparation of their plates. By burying food into the boiling water under the earth, it cooks throughout.
Because of these forces, however, Hveragerði has gotten the nickname ‘the Earthquake Town’.
Hveragerði is a town and municipality in the southwest of Iceland. It is often nicknamed ‘the Earthquake Town’ or ‘the Hot Spring Town’, due to the active geological and geothermal forces that define it.
Hveragerdi town and services
Hveragerði is around 45 kilometres (28 miles) from the capital Reykjavík and takes half an hour to drive to along the Ring Road travelling south. Around 2,300 people live in Hveragerði, most employed in tourism, horticulture or agriculture.
There is a service centre in the town with shops, including an alcohol shop, a supermarket, a gas station, an information point, and a cafe. There are several restaurants as well, and just outside it is a popular horse farm.
Surrounding the town are nice botanical areas and many recreational activities are available. There are excellent hiking trails as well as nice hotels and a camping ground which is open in the summer months.
In terms of culture, a number of museums can be found in Hveragerði, such as the Árnesingar art museum and Hveragerði Stone and Mineral Museum. The town even hosts an annual culture and family festival in August.
Geography of Hveragerdi
Hveragerði sits on a highly geothermal area. Boiling water runs just beneath the surface of the ground, leading to many hot springs in the nearby hills. This is both a blessing for the town and a curse.
In terms of a blessing, it allows greenhouses to flourish, as they can be provided with heat throughout the year. Hveragerði is thus the world’s northernmost producer of bananas, which are grown alongside a host of other fruits and vegetables.
Many flowers and herbs are also grown here, and it is considered the centre of botany in Iceland.
The boiling water also allows food to be cooked simply by burying it for a few hours, providing the restaurants in the area with unique menus. It also brings the area a wealth of tourism.
The curse of this geothermal water is the effect it has on the residents. Stories of hot springs opening overnight in people’s kitchens, bedrooms and living rooms are very common.
Also, due to the Mid-Atlantic rift running through Iceland, many earthquakes hit Hveragerði. Fortunately, the houses are built here to withstand tremors, due to how common they are, but there is a lingering knowledge that a powerful earthquake or eruption could cause serious, perhaps irreparable damage to the settlement.
The river Varmá runs from the valley of Reykjadalur through the town. This region, which translates to the 'Steam Valley', is an incredibly popular place for hot spring bathing and hiking.
A gravel road that leads from Hveragerði takes you to the base of the hiking trail, which winds up, down and around beautiful, scenic hills dotted with fumaroles and mud pits.
It ends by a river that is fed by hot springs, meaning it is heated from the top, allowing visitors to choose the perfect place to bathe. There are no indoor changing areas, but screens to undress behind.
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